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Community Water System · PWS UTAH26055

Interlaken Town

Heber City, Utah 84032 - drinking water served from groundwater sources to 350 people, tracked in EPA SDWIS and UCMR5.

350
People served
178
EPA violations
29
Health-based
Untested
UCMR5 result

The verdict

EPA records 178 drinking-water violations at Interlaken Town, 16% of them health-based - above the Utah per-system average.

178
Total EPA violations on record
16%
Health-based (MCL / treatment failure)
350
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Interlaken Town

Interlaken Town is a private-owned community water system that delivers drinking water to 350 residents in Heber City, Utah (Wasatch County) through 148 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 178 total violations for this system , of which 29 (16%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 90 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 21 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Utah, EPA tracks 1,068 public water systems serving 3,870,776 people, with 169,784 cumulative violations and 10,671 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 159 violations. Statewide, 91 of 129 UCMR5-tested systems have reported PFAS detections (70.5%).

Interlaken Town's 178 violations sit above the Utah average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
350
Total Violations
178
Health-Based Violations
29
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
148
County
Wasatch
School/Daycare
No
MCL Violations
26
Monitoring Violations
90
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 21 2016
Coliform (TCR) MR 18 2008
Lead and Copper Rule MR 10 2011
Nitrate MR 10 2011
Revised Total Coliform Rule MCL 5 2017
Arsenic MR 4 2008
Barium MR 4 2008
Cadmium MR 4 2008
Fluoride MR 4 2008
Selenium MR 4 2008
Chromium MR 4 2008
Mercury MR 4 2008
Radium-228 MR 3 2010
Antimony, Total MR 3 2008
Beryllium, Total MR 3 2008
Thallium, Total MR 3 2008
Groundwater Rule TT 3 2019
Revised Total Coliform Rule MON 3 2020
Coliform (TCR) Other 3 1993
Nickel MR 3 2008
CYANIDE MR 3 2008
Gross Alpha, Excl. Radon and U MR 2 1987
Nitrite MR 1 1993

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Interlaken Town.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID UTAH26055 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Utah Drinking Water Authority

Utah's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find UT regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2020 Revised Total Coliform Rule MON 3 SDWIS / UTAH26055 / 8000
2019 Groundwater Rule TT 3 SDWIS / UTAH26055 / 0700
2017 Revised Total Coliform Rule MCL 5 SDWIS / UTAH26055 / 8000
2016 Coliform (TCR) MCL 21 SDWIS / UTAH26055 / 3100
2011 Lead and Copper Rule MR 10 SDWIS / UTAH26055 / 5000
2011 Nitrate MR 10 SDWIS / UTAH26055 / 1040
2010 Radium-228 MR 3 SDWIS / UTAH26055 / 4030
2008 Coliform (TCR) MR 18 SDWIS / UTAH26055 / 3100
2008 Arsenic MR 4 SDWIS / UTAH26055 / 1005
2008 Barium MR 4 SDWIS / UTAH26055 / 1010
2008 Cadmium MR 4 SDWIS / UTAH26055 / 1015
2008 Fluoride MR 4 SDWIS / UTAH26055 / 1025
2008 Selenium MR 4 SDWIS / UTAH26055 / 1045
2008 Chromium MR 4 SDWIS / UTAH26055 / 1020
2008 Mercury MR 4 SDWIS / UTAH26055 / 1035

How Interlaken Town Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Interlaken Town Utah avg Federal benchmark
Total violations 178 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 29 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 70.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 350 3,624 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,068 regulated public water systems in Utah.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Interlaken Town water safe to drink? ▼
Interlaken Town (PWS ID: UTAH26055) has 178 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 350 people using Groundwater sources.
How many people does Interlaken Town serve? ▼
Interlaken Town serves 350 people in Heber City, Utah. It is a Private-owned system using Groundwater water sources with 148 service connections.
What type of violations does Interlaken Town have? ▼
Interlaken Town has 178 total violations: 29 health-based violations (MCL exceedances or treatment failures), 90 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Interlaken Town water? ▼
No PFAS testing data is available for Interlaken Town under the EPA's UCMR5 monitoring program.
What water source does Interlaken Town use? ▼
Interlaken Town uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.